rden and lands at Trenton. the distance along the ground in a straight line is 248km. it takes off from the ground and flies up quickly on a slant into air until it reaches a height of 15km. once it reaches a height of 15km above the ground, the plane levels out and flies parallel to the ground keeping its height constant. once the ground distance between the plane and Trenton is 100km, it points lower to make a diagonal descent to base in Trenton. what's the total distance of the plane's path